Systems Engineering Resiliency: Guiding Tradespace Exploration within an Engineered Resilient Systems Context

Engineered Resilient Systems (ERS) is a Department of Defense (DoD) program focusing on the effective and efficient design and development of complex engineered systems across their lifecycle. An important area of focus is the evaluation of early-stage design alternatives in terms of their modeled operational performance and characteristics. This work strives to lay the initial foundations for systems engineering the analysis of resiliency in this context through the development of modular, composable, and scalable analytical constructs and processes. The analytical methods are derived from existing ontological bases, and seek to promote consistency and comparability from one analysis to the next. Specifically, analytical methods in this work focus on evaluating ‘Robustness of fielded system capabilities and capacity with respect to operational requirements’ and ‘Flexibility of a designed system to engineering change’. The development philosophy strives to enable design and development of resiliency analyses that are transparent, intuitive, rational, and quantifiably traceable.